TWI826010B - Head-mounted display - Google Patents

Abstract

A head-mounted display includes a wearable assembly, a display device, a power module, and an extension device. The wearable assembly includes a wearable structure, a first guiding portion, and a first electrical connecting portion. The first guiding portion and the first electrical connecting portion are disposed on the wearable structure. The display device is disposed on the wearable assembly. The power module includes a second guiding portion and a second electrical connecting portion. The power module is removably disposed on the first guiding portion by the second guiding portion, the second electrical connecting portion is electrically connected to the first electrical connecting portion, and the power module is located a location corresponding to the display device. The extension device is selectively disposed on the power module.

Description

head mounted display device

This case relates to head-mounted devices, specifically a head-mounted display device.

Virtual Reality (VR) is a technology that combines computer graphics systems and various display and control devices to produce virtual three-dimensional images. Generally, virtual three-dimensional images are mainly realized through VR glasses, and the VR glasses on the market are mainly combined with headbands to form a head-mounted display (Head-mounted Display) for users to wear.

However, in order for the VR glasses on the market to operate independently and take into account battery life, the VR glasses must be equipped with a large-capacity power module, which will significantly increase the weight of the VR glasses. When the VR glasses are combined with the headband, the VR glasses In order to fit the user's eyes, the headband must be mounted on the forehead. This causes most of the weight to be concentrated on the user's forehead after wearing it, which will cause a burden on the user during activities. , which affects the user experience.

In addition, the aforementioned VR glasses need to be expanded and connected to various expansion devices, but most of the various expansion devices are wired to the VR glasses through physical lines. When the VR glasses are expanded and connected to the expansion device, the lines of the expansion device are wrapped around the VR glasses, causing the use of It is inconvenient and extremely unsightly, so it needs to be improved.

This case provides a head-mounted display device, including a wearable component, a display device, a power module and an expansion device. The wearable component includes a wearable structure, a first guide part and a first electrical connection part. The first guide part and the first electrical connection part are provided on the wearing structure. Display device settings. The power module includes a second guide part and a second electrical connection part. The power module has the second guide part detachably provided on the first guide part, and the second electrical connection part is electrically connected to the first electrical connection part. , and the power module is located on the wearable structure relative to the display device. The expansion device is selectively provided on the power module.

In this way, the display device and the power module of the head-mounted display device are respectively arranged in opposite positions of the wearable structure, balancing the gravity distribution of the overall head-mounted display device and improving the user experience, and the power module is detachably connected. As for the wearable structure, users can replace it according to the usage conditions to improve the convenience of use.

In some embodiments, the aforementioned display device is located on the wearable structure at a position relative to the first guide part and the first electrical connection part.

In some embodiments, the first guide part is a slide groove, and the second guide part is a bump.

In some embodiments, the aforementioned wearing structure includes a belt body, an assembly base and an adjustment piece. Both ends of the belt body are inserted into the assembly base. The adjustment pieces are rotatably provided on the assembly base and are respectively connected to both ends of the belt body for adjustment. The length of the belt body exposed from the assembly base.

In some embodiments, the aforementioned power module includes a housing. One side of the housing has a notch, and the notch is inserted into the adjustment member.

In some embodiments, the aforementioned wearable component further includes a first positioning portion, the power module includes a second positioning portion, and the second positioning portion is positioned at the first positioning portion of the wearable component.

In some embodiments, the first positioning part and the second positioning part are magnetic components.

In some embodiments, the expansion device includes a third electrical connection part and a third positioning part, and the power module further includes a fourth electrical connection part and a fourth positioning part. The fourth electrical connection part and the fourth positioning part are located in the recess of the housing. On the same side of the opening, the third positioning part of the expansion device is positioned on the fourth positioning part so that the third electrical connection part is electrically connected to the fourth electrical connection part.

In some embodiments, the aforementioned wearable component further includes a fifth electrical connection part and a fifth positioning part. The fifth electrical connection part and the fifth positioning part are located on the opposite side of the wearable structure setting display device, and the expansion device further includes a sixth electrical connection part. With the sixth positioning part, the sixth positioning part of the expansion device is positioned on the fifth positioning part so that the sixth electrical connection part is electrically connected to the fifth electrical connection part.

In some embodiments, the aforementioned expansion device is an earphone and includes a main body, two extension sections and two ear cups. The third positioning part and the fifth positioning part are located on two opposite sides of the main body, and one end of each extension section is connected to the main body. At both ends of the extension section, each earmuff is slidably and rotatably disposed at the other end of the extension section.

In some embodiments, the aforementioned expansion device is a secondary power module.

In some embodiments, the aforementioned expansion device is a wireless communication module.

Please refer to FIGS. 1 and 2 together. FIG. 1 is a schematic three-dimensional appearance diagram of an embodiment of the head-mounted display device of the present invention; FIG. 2 is a schematic exploded view of the three-dimensional structure of an embodiment of the head-mounted display device of the present invention. This case provides a head-mounted display (HMD), which mainly provides users with wireless configuration power and wireless configuration of other expansion devices as needed, avoiding wiring entanglement and improving the convenience of disassembly, assembly, and transformation.

Referring to FIGS. 1 and 3 , the head-mounted display device in this case includes a wearable component 10 , a display device 20 , a power module 30 and an expansion device 40 . The wearing component 10 includes a wearing structure 11 , a first guide part 12 and a first electrical connection part 13 . The first guide part 12 and the first electrical connection part 13 are respectively provided on the wearing structure 11 . The display device 20 is provided on the wearable component 10 . The power module 30 includes a second guide part 32 and a second electrical connection part 33. The power module 30 is detachably provided with the second guide part 32 on the first guide part 12, and the second electrical connection part 33 is electrically The power module 30 is electrically connected to the first electrical connection part 13 , and the power module 30 is located on the wearable structure 11 relative to the display device 20 . The expansion device 40 is selectively provided on the power module 30 .

Referring to FIGS. 1 and 2 , the display device 20 and the power module 30 of the head-mounted display device are respectively disposed on two opposite sides of the wearable structure 11 to balance the gravity distribution of the overall head-mounted display device and enhance the user experience. , and the power module 30 is detachably connected to the wearable structure 11, and the user can quickly replace it according to the usage conditions, thereby improving the convenience of use. In addition, the power module 30 also allows the user to selectively configure the expansion device 40 according to the usage requirements, so as to meet various usage requirements.

Referring to FIGS. 1 and 2 , in some embodiments, the display device 20 may include a housing 21 and an optical system (not shown in the figure) and a display (not shown in the figure) disposed in the housing 21 . And the display of the display device 20 can be a built-in display or an external portable display (such as a smart phone), but the present case is not limited thereto. The types of the aforementioned displays can be adjusted according to the application of the head-mounted display device in a virtual reality system, an augmented reality system, or a mixed reality system. The optical system includes optical elements used to change the light path of the display, such as lenses, light guides, or lenses.

Referring to FIG. 1 and FIG. 2 , in some embodiments, the wearing structure 11 of the wearing component 10 is used to be worn by the user. In some embodiments, the wearing structure 11 is suitable for being worn on the user's head. In these embodiments, the wearing structure 11 is an annular structure to be worn on the human head. The wearing structure 11 is worn behind the user's head. The display device 20 corresponds to the user's forehead, and the power module 30 corresponds to the user's forehead. The dipping position on the back of the head.

Referring to FIGS. 1 and 2 , the first guide part 12 is provided on the wearable structure 11 to guide the assembly of the power module 30 . In some embodiments, the first guide portion 12 is a groove, and the second guide portion 32 of the power module 30 is a bump. In these embodiments, the first guide portion 12 has a T-shaped cross section and is vertically The second guide portion 32 is a T-shaped protrusion corresponding to the groove shape. Here, the vertical direction refers to the up-and-down direction perpendicular to the horizontal plane of the ground when the head-mounted display device is worn on the user's head. Thereby, the power module 30 can be guided by the first guide portion 12 to be displaced in the vertical direction and assembled on the wearable structure 11 and be restrained, so that it can be quickly assembled and disassembled.

Referring to FIGS. 1 and 2 , the first electrical connection part 13 is provided on the wearable structure 11 to be electrically connected to the power module 30 . In some embodiments, the first electrical connection part 13 is a POGO PIN Connector, and the second electrical connection part 33 is a POGO PIN connection that can cooperate and abut with the first electrical connection part 13 to form an electrical connection. device, but this case is not limited to this.

In some embodiments, the first guide part 12 and the first electrical connection part 13 are located on the wearable structure 11 at a position relative to the display device 20, so that the power module 30 passes through the first guide part 12 and the first electrical connection part. When assembled to the wearable structure 11, the display device 13 can be positioned opposite the display device 20 on the wearable structure 11, which facilitates the user's assembly.

The inner diameter of the wearable structure 11 around the user's head can be adjusted based on the user's head circumference. The wearable structure 11 is not limited to elastic adjustment made of partially flexible materials, and may also be adjusted through an adjustment mechanism.

Referring to FIGS. 1 and 2 , in some embodiments in which the size of the wearing structure 11 is adjusted through an adjustment mechanism, the wearing structure 11 includes a belt body 111 , an assembly base 112 and an adjustment member 113 . In some embodiments, the belt body 111 is looped and inserted into the assembly seat 112 with its two ends reversibly displaceable. Part of the adjustment member 113 penetrates into the assembly seat 112 to connect the two ends of the belt body 111 and is partially exposed. The assembly base 112 allows the user to rotate and adjust the relative positions of the two ends of the belt body 111 so that the length of the belt body 111 exposed to the assembly base 112 can be adjusted. In some embodiments, the two ends of the belt body 111 located in the assembly seat 112 respectively have tooth portions (not shown in the figure), and the part of the adjusting member 113 that penetrates into the assembly seat 112 has a gear (not shown in the figure) and The teeth are respectively meshed with the two ends of the belt body 111. Therefore, by rotating the adjusting member 113, the relative positions of the two ends of the belt body 111 can be correspondingly controlled to change the inner diameter of the belt body 111. It is worth noting that the adjustment mechanism for adjusting the inner diameter of the belt body 111 in this case is not limited to this.

Referring to FIGS. 1 and 2 , in some embodiments in which the wearable structure 11 includes an assembly base 112 , the first guide part 12 and the first electrical connection part 13 are disposed on the assembly base 112 , and the power module 30 includes a housing 31 , there is a notch 311 on one side of the housing 31, so that the overall power module 30 has an appearance similar to an arch. In these embodiments, when the second guide portion 32 of the power module 30 penetrates the first guide portion 12 and moves along the first guide portion 12 to the end of the first guide portion 12 , the power module 30 The second electrical connection part 33 can just abut and be electrically connected to the first electrical connection part 13 of the wearable component 10. At the same time, the notch 311 of the power module 30 is sleeved on the adjustment member 113, and the adjustment member 113 is Partially protruding from the notch 311 allows the user to rotate the adjustment member 113 to adjust the winding size of the belt body 111. Therefore, this embodiment can dispose the power module 30 in an opposite position relative to the display device 20 without any problem. Affects the setting of the adjustment piece 113.

Referring to FIGS. 1 and 2 , in some embodiments, in order to improve the stability of the power module 30 being assembled on the wearable component 10 , the number of the first guide parts 12 of the wearable component 10 is two and is located on both sides of the adjustment member 113 . , and the number of the second guide portions 32 of the power module 30 is two and is located on both sides of the notch 311, thereby improving the structural stability of the power module 30 when assembled on the wearable component 10.

Referring to Figures 1 and 2, in some embodiments, the assembly seat 112 has a three-dimensional structure and has a top surface 1121, a bottom surface 1122, an outer side 1123 and an inner side 1124. The top surface 1121 and the bottom surface 1122 are opposite, and the outer side 1123 and the inner side 1124 Opposite, and the top surface 1121 and the bottom surface 1122 are connected between the inner side 1124 and the outer side 1123. Here, when the wearing structure 11 is worn on the human head, the inner side 1124 of the assembly base 112 is the side facing the user. The outer side 1123 is the side close to the power module 30 .

Referring to FIGS. 1 and 2 , in some embodiments, the adjusting member 113 passes through the middle position of the outer side 1123 , the first electrical connection part 13 is provided at the middle position of the top surface 1121 , and the first guide part 12 is made of The top surface 1121 is open and extends to the outer side 1123 and is located on both sides of the adjusting member 113 . In these embodiments, the housing 31 of the power module 30 further includes a resisting flange 312 on the side opposite to the notch 311. The resisting flange 312 protrudes from one side of the housing 31, and the second electrical connection The portion 33 is provided against the flange 312 . Specifically, the side on which the second electrical connection part 33 is provided against the flange 312 is vertically adjacent to the side on which the second guide part 32 is provided on the housing 31 . Thereby, when the power module 30 is assembled on the wearable component 10, the abutting flange 312 of the power module 30 can abut against the top surface 1121 of the assembly base 112, where the power module is provided through the abutting flange 312. The group 30 is supported in the vertical direction, and at the same time, the first electrical connection part 13 and the second electrical connection part 33 become abutting in the vertical direction, thereby improving stability.

Referring to FIGS. 1 and 2 , in some embodiments, in order to further improve the stability of the power module 30 being assembled on the wearable component 10 , the wearable component 10 further includes a first positioning part 14 , and the power module 30 further includes a second positioning part. 34. When the power module 30 is assembled on the wearable component 10, the second positioning part 34 of the power module 30 is positioned on the first positioning part 14 of the wearable component 10.

In some embodiments, the first positioning part 14 of the wearable component 10 and the second positioning part 34 of the power module 30 are magnetic pieces that can be magnetically positioned with each other, but the present case is not limited to this.

Referring to FIGS. 1 and 2 , in some embodiments in which the first positioning part 14 and the second positioning part 34 are magnetic components, the first positioning part 14 may be disposed inside the assembly base 112 of the wearable structure 11 , and the second positioning part 14 may be disposed inside the assembly base 112 of the wearable structure 11 . The portion 34 can be disposed inside the housing 31 of the power module 30, thereby maintaining the surface smoothness and aesthetics of the assembly base 112 and the housing 31.

Referring to FIGS. 3 to 10 , in some embodiments, the expansion device 40 may be a device assembled in the power module 30 to obtain a power source from the power module 30 , or may be assembled in the power module 30 and the power module 30 Devices that collectively provide power to the display device 20 . In these embodiments, the expansion device 40 includes a third electrical connection part 41 and a third positioning part 42, the power module 30 further includes a fourth electrical connection part 35 and a fourth positioning part 36, the fourth electrical connection part 35 and the third positioning part 36. The four positioning parts 36 are located on the same side of the housing 31 where the notch 311 is provided, whereby the third positioning part 42 of the expansion device 40 is positioned on the fourth positioning part 36 of the power module 30 so that the third electrical connection part 41 is electrically connected. at the fourth electrical connection portion 35 . Here, the third electrical connection portion 41 is a POGO PIN connector, and the fourth electrical connection portion 35 is a POGO PIN connector that can engage and abut with the third electrical connection portion 41 to form an electrical connection. In addition, the third positioning part 42 of the expansion device 40 and the fourth positioning part 36 of the power module 30 are magnetic pieces that can magnetically attract and position each other, but the present invention is not limited to this.

Referring to FIGS. 3 to 10 , in some embodiments, the expansion device 40 includes a main body 43 . The main body 43 is provided with functional components that can produce different functions and can be matched with other peripheral components to enable the expansion device 40 to provide different expansion functions. Specifically, different functional components are provided in the main body 43 of the expansion device 40 and can become the auxiliary power module 40A, the wireless communication module 40B or the earphone 40C, but the present invention is not limited to this. The specific structural configuration of the expansion device 40 that provides different functions will be described below.

Referring to FIG. 3 , in some embodiments, the main body 43 of the expansion device 40 has a cubic structure and includes a first surface 431 and a second surface 432 that are parallel to each other. The third electrical connection part 41 and the third positioning part 42 are disposed on the first surface. Face 431.

Referring to FIG. 3 , in some embodiments, the expansion device 40 is assembled in the power module 30 and the power module 30 jointly supplies power to the auxiliary power module 40A of the display device 20 . In these embodiments, the main body 43 is provided with functional components capable of storing and supplying electrical energy (such as circuit boards and capacitors or batteries). In these embodiments, the auxiliary power module 40A is positioned on the second positioning part 34 of the power module 30 through the third positioning part 42 on the first surface 431 of the main body 43 to be positioned on the power module 30. At the same time, the auxiliary power module 40A is positioned on the power module 30. The third electrical connection part 41 of the group 40A is electrically connected to the fourth electrical connection part 35 of the power module 30, whereby the auxiliary power module 40A and the power module 30 can simultaneously provide the power source required by the display device 20, extending The operating endurance of the display device 20 is displayed.

Referring to FIG. 4 and FIG. 5 , in some embodiments, the expansion device 40 is a wireless communication module 40B (such as a 5G antenna). In these embodiments, the wireless communication module 40B includes a main body 43 and an extension section 44. The main body 43 is provided with functional components (such as circuit boards and antennas) that can provide wireless communication, and the extension section 44 is connected to the main body 43 and Extending in a direction away from the main body 43 . In these embodiments, the wireless communication module 40B is positioned on the fourth positioning portion 36 of the power module 30 through the third positioning portion 42 on the first surface 431 of the main body 43 so as to be positioned on the power module 30. At the same time, the wireless communication module 40B is positioned on the power module 30. The third electrical connection portion 41 of the group 40B is electrically connected to the fourth electrical connection portion 35 of the power module 30, whereby the wireless communication module 40B can obtain power from the power module 30 and provide wireless communication for the display device 20. Function, in addition, in these embodiments, when the head-mounted display device is assembled with the wireless communication module 40B and worn on the user's head, the extension section 44 of the wireless communication module 40B extends in a direction close to the display device 20. This improves the stability of wireless communication of the display device 20 .

Referring to FIGS. 6 to 10 , in some embodiments, the expansion device 40 is an earphone 40C assembled in the power module 30 to draw power from the power module 30 . In these embodiments, the expansion device 40 includes a main body 43, two extension sections 44 and two ear cups 45. The main body 43 is provided with functional components that can provide audio processing functions. One end of the two extension sections 44 is connected to the main body 43 and Opposite to each other, the two extension sections 44 and the main body 43 form a generally U-shaped appearance, and each earmuff 45 is slidably and rotatably disposed at the other end of each extension section 44 . Thereby, the earphone 40C can obtain power from the power module 30 and provide the user with an earphone function for audio playback.

Referring to FIGS. 6 to 8 , in these embodiments, each extension section 44 of the earphone 40C is connected between the first surface 431 and the second surface 432 of the main body 43 . Thereby, when the third electrical connection portion 41 on the first surface 431 of the main body 43 of the earphone 40C is electrically connected to the fourth electrical connection portion 35 of the power module 30, and the third positioning portion 42 is positioned to the fourth position 36, each extension section 44 extends from the back of the user's head toward both sides of the face. The earmuffs 45 at the end of each extension section 44 can also be extended to a position corresponding to the user's ear. The user can pivot The earmuffs 45 (as shown in Figures 7 and 8) make the position of the earmuffs 45 more suitable for different users' ears, and are highly convenient to use.

Referring to FIGS. 9 and 10 , in some embodiments, in order to make the earphone 40C suitable for users with different usage habits, the wearable component 10 further includes a fifth electrical connection part 15 and a fifth positioning part 16 . The fifth electrical connection part 15 and The fifth positioning part 16 is provided at a position adjacent to the display device 20 on the wearable structure 11 , and the expansion device 40 (earphone 40C) further includes a sixth electrical connection part 46 and a sixth positioning part 47 . The sixth electrical connection part 46 of the expansion device 40 The sixth positioning portion 47 is provided on the second surface 432 of the main body 43 . Thereby, when the earphone 40C is positioned on the fifth positioning part 16 of the wearable component 10 with the sixth positioning part 47, and the sixth electrical connection part 46 is electrically connected to the fifth electrical connection part 15, the earphone 40C is relative to the band 111 is arranged in an upright manner across the top of the user's head, thereby allowing users with different usage habits to freely change the installation position of the expansion device 40 for use. Here, the fifth electrical connection portion 15 is a POGO PIN connector, and the sixth electrical connection portion 46 is a POGO PIN connector that can engage and abut with the fifth electrical connection portion 15 to form an electrical connection. In addition, the fifth positioning part 16 of the wearable component 10 and the sixth positioning part 47 of the expansion device 40 are magnetic pieces that can be magnetically positioned with each other, but the present invention is not limited to this.

Although the present disclosure has been disclosed in some embodiments, this is not intended to limit the present disclosure. Anyone with ordinary knowledge in the art may make slight changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of patent protection in this case must be determined by the scope of the patent application attached to this specification.

10: Wearable components

11: Wearing structure

111:With body

112:Assembly base

1121:Top surface

1122: Bottom surface

1123:Outer side

1124: Medial side

113:Adjustment parts

12:First Guidance Department

13: First electrical connection part

14:First positioning department

15: The fifth electrical connection part

16:The fifth positioning department

20:Display device

21: Shell

30:Power module

31: Shell

311: Notch

312: against flange

32:Second Guidance Department

33: Second electrical connection part

34:Second positioning department

35: The fourth electrical connection part

36:The fourth positioning department

40: Expansion device

40A: Auxiliary power module

40B: Wireless communication module

40C: Headphones

41: The third electrical connection part

42:Third positioning department

43:Main body

431: First side

432:Second side

44:Extended section

45: earmuffs

46: Sixth electrical connection part

47:Sixth Positioning Department

[Fig. 1] is a schematic three-dimensional appearance diagram of one embodiment of the head-mounted display device of the present invention. [Fig. 2] is an exploded schematic diagram of the three-dimensional structure of one embodiment of the head-mounted display device in this case. [Fig. 3] is an exploded schematic diagram of an expansion module in the form of a secondary power supply module of the head-mounted display device according to one embodiment of the present invention. [Fig. 4] is an exploded schematic diagram of an expansion module in the form of a wireless communication module according to an embodiment of the present invention. [Fig. 5] is a schematic diagram of the use state of an expansion module in the form of a wireless communication module according to an embodiment of the present invention. [Figure 6] is an exploded schematic diagram of an expansion module in the form of a headset according to an embodiment of the head-mounted display device of the present invention. [Fig. 7] is a schematic diagram 1 of the use state of an embodiment of the head-mounted display device in conjunction with an earphone-type expansion module. [Fig. 8] is a schematic diagram 2 of the use state of an embodiment of the head-mounted display device in conjunction with an earphone-type expansion module. [Fig. 9] is an exploded schematic diagram 2 of an expansion module in the form of a headset according to an embodiment of the head-mounted display device of the present invention. [Figure 10] is a schematic diagram 3 of the use state of an embodiment of the head-mounted display device in conjunction with an earphone-type expansion module.

10: Wearable components

11: Wearing structure

111:With body

112:Assembly base

1121:Top surface

1122: Bottom surface

1123:Outer side

1124: Medial side

113:Adjustment parts

12:First Guidance Department

13: First electrical connection part

14:First positioning department

20:Display device

21: Shell

30:Power module

31: Shell

311: Notch

312: against flange

32:Second Guidance Department

33: Second electrical connection part

34:Second positioning department

35: The fourth electrical connection part

36:The fourth positioning department

Claims (12)

A head-mounted display device includes: a wearable component, including: a wearable structure including a top surface; a first guide portion provided on the wearable structure; and a first electrical connection portion provided on the wearable structure ; A display device, provided on the wearable component; A power module, including a second guide part and a second electrical connection part, the power module can be separated along a vertical direction with the second guide part In the first guide part, the second electrical connection part is electrically connected to the first electrical connection part, the power module is located on the wearable structure relative to the display device, and the power module is against The top surface of the wearable structure is supported by the wearable structure in the vertical direction; and an expansion device is selectively disposed on the power module. The head-mounted display device according to claim 1, wherein the display device is located on the wearable structure at a position relative to the first guide part and the first electrical connection part. The head-mounted display device according to claim 1, wherein the first guide part is a slide groove and the second guide part is a bump. The head-mounted display device as claimed in claim 1, wherein the wearable structure includes a belt, an assembly base and an adjustment piece. Both ends of the belt are inserted into the assembly base, and the adjustment piece is rotatably provided. The two ends of the belt body are respectively connected to the assembly base to adjust the length of the belt body exposed to the assembly base. The head-mounted display device as claimed in claim 4, wherein the power module includes a housing with a notch on one side, and the notch is inserted into the adjustment member. The head-mounted display device of claim 1, wherein the wearable component further includes a first positioning portion, the power module includes a second positioning portion, and the second positioning portion is positioned on the first positioning portion of the wearable component. Positioning Department. The head-mounted display device according to claim 6, wherein the first positioning part and the second positioning part are magnetic components. The head-mounted display device of claim 5, wherein the expansion device includes a third electrical connection part and a third positioning part, and the power module further includes a fourth electrical connection part and a fourth positioning part, The fourth electrical connection part and the fourth positioning part are located on the same side of the housing where the notch is provided, and the third positioning part of the expansion device is positioned on the fourth positioning part so that the third electrical connection part is electrically connected at the fourth electrical connection portion. The head-mounted display device of claim 8, wherein the wearable component further includes a fifth electrical connection part and a fifth positioning part, and the fifth electrical connection part and the fifth positioning part are located on the wearable structure. On the opposite side of the display device, the expansion device further includes a sixth electrical connection part and a sixth positioning part. The sixth positioning part of the expansion device is positioned on the fifth positioning part to cause the sixth electrical connection part to be electrically connected. at the fifth electrical connection portion. The head-mounted display device of claim 9, wherein the expansion device is an earphone, the expansion device includes a main body, two extension sections and two ear cups, and the third positioning part and the fifth positioning part are located on the On two opposite sides of the main body, one end of each extension section is connected to both ends of the main body, and each earmuff is slidably and rotatably disposed on the other end of the extension section. The head-mounted display device according to claim 8, wherein the expansion device is a power module. The head-mounted display device according to claim 8, wherein the expansion device is a wireless communication module.

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